McMahon Steel Company Inc.

ConstructionCalifornia, United States11-50 Employees

McMahon Steel Company Inc. is a Southern California-based fabricator and erector specializing in structural steel and miscellaneous iron for commercial and industrial construction projects in the Southwest. Founded in 1970 and still family-owned, the firm handles detailing, fabrication, and installation from the ground up, supported by certifications from AISC and the City of Los Angeles. Its services address the needs of developers and contractors seeking integrated steel solutions for complex building systems. Located in Chula Vista, California, the company positions itself as a regional provider capable of managing both the production and installation phases of steel work. With a workforce drawn from the local region, McMahon Steel emphasizes end-to-end capability and reliability in delivering steel components for diverse projects.

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